Always do what you are afraid to do.

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young.

Drink moderately, for drunkenness neither keeps a secret nor observes a promise.

The fact that the great scientist believed in flying machines was the one thing that encouraged us to begin our studies.

The key to immortality is first living a life worth remembering.

Surround yourself only with people who are going to take you higher.

Scar tissue is stronger than regular tissue. Realize the strength, move on.

It always seems impossible until it's done.

Don?t only practice your art, but force your way into its secrets, for it and knowledge can raise men to the divine.

The great secret of true success, of true happiness, is this: the man or woman who asks for no return, the perfectly unselfish person, is the most successful.

Once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return.

Some people feel the rain. Others just get wet.

However difficult life may seem, there is always something you can do and succeed at.

Do not look for approval except for the consciousness of doing your best.

We should not give up and we should not allow the problem to defeat us.

Man needs his difficulties because they are necessary to enjoy success.

Don't get set into one form, adapt it and build your own, and let it grow, be like water.

If you can dream it, you can do it. Always remember that this whole thing was started with a dream and a mouse.

Neither worse then or better is a thing made by being praised.

Don't find fault, find a remedy; anybody can complain

There is no greater agony than bearing an untold story inside you.